Rochester Weather Forecast

    • 51
    • 78

    Increasing Clouds

    • 51
    • 77

    Partly Sunny

    • 54
    • 79

    Partly Sunny

    • 53
    • 78

    Partly Sunny

    • 55
    • 84

    Mostly Sunny

    • 57
    • 85

    Partly Sunny

    • 56
    • 81

    Mostly Cloudy

Today 9 Aug Lowlands of Lewis and Southern Thurston Counties

Mostly sunny. Patchy fog in the morning. Highs in the mid 70s to lower 80s. Light wind becoming west to 10 Mph with Gusts to 20 Mph in the afternoon.

Tonight 9 Aug Lowlands of Lewis and Southern Thurston Counties

Partly cloudy. Patchy fog late in the night. Lows in the mid 40s to lower 50s. West wind to 10 Mph with Gusts to 20 Mph becoming south after midnight.

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Rochester Temperature Statistics

August Temperature

Chehalis-Centralia Airport (11.2 miles)

  • Lowest 3 August, 2026

    48.2 °F

  • Average August

    66.4 °F

  • Highest 5 August, 2026

    89.6 °F

Climate (2021–2026)

Chehalis-Centralia Airport (11.2 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    61.3 °F
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